What is a nail dent?

The nails show depression: General tips for nail malnutrition changes. Need to further clarify the cause, such as blood test, trace elements, and thyroid function. Daily attention to balance the diet structure, do not partial diet, eat lean meat, soy products and fresh vegetables and fruits, actively supplement vitamins together with calcium, iron, zinc and other minerals and trace elements. Suggest oral multi-element tablets for adults, such as 21-vitamin, two tablets a day. Usually with the use of armour-type hand cream.